Process of treating metal sheets or plates.



H. E. SHELDON.

PROCESS OF TREATING METAL SHEETS OR PLATES.

APPLIOATION'FILED MAR. 21. 1905.

1,01 ,715, Patented Feb6,1912.

WITNESSES: INVENTOR n-r-ronnsvs.

HARRY E. SHELDON, OF PITTSBURGH, PENNSYLVANIA,

PRQCESS OF TREATING METAL SHEETS OR PLATES,

Specification of Letters Patent. Patented Fell), 6, @912. Application filed March 21, 1905. Serial No. 251,297.

whom may concern: of rolls 8 and 9 l and 11, 12 and 1-. ,cntl 55 7 lm=t Wn that I, lElAnRY E. SHELDON, 14 and 15. l have ,3] mm he rolls con- H t Ul tl S e 8 re d ng a structed. to treat the n p er surfaces only f f u 3111531118 cfimity of lllleghel'iy and the sheets, as the upper rolls -3 and ennsylviinia, have invented or shown to be compost l. of emery or other new anal useful Improvements in chi-e0 unhwhile all the lowerrollssrenmcle of c of Treating- Met-zil Sheets or Plates, soft yi .lding cloth ks strung; fulfil clamped lllLil the following; is a specification. together. l 10 rolls if and 1;; re mmpgged invention relates to the process of of cloth disks or hiillir n'mterial, so 1119; metal or plates whereby they in emery or the like, hongh the roll ill giver. a, 'iolishetl or Russia finish. 'n some cases not need to be supplied with lt is once? the objects of the present an ahreclent. ll is clear that the err-mine. process to provide a. continuous null or prooment of the rolls .i-lght be reversed so the.

wherein all the steps are or may he ciir-- the lower surfaces of the sheets would. l e

on FY0 1 the pickling operation in a treated; or that the in icr and lower rolls illltflln'littjlflttlly'tO the elm inny alternately cone 1: surfiice'treating it;

operations. ineterial and sheet supporting material, two

.. ()Ufltflll'llnatGS rho pickling of of each kind coiipereting in pairs, so that .e-tsl, it through a scrubber or both surfaces of the sheets would. be treated.

w ling device, drying it, burnishing it on The sheets are passed back end forth he 1 cr both sitles, hluing, and oiling it. tweell all the rolls and moved. laterally e't- 5.

he drawings accompanying the specificnthe scans tune, so that, when they have and. forming a. part hereof illustrate passed. lxszyoncl the rolls l-l anol 15', the;

nmgr-anonatioally in side elevawill carry a. very highly polished snr @ticel section one of the many or surf ens. The sheets may he carried. 11, z..echnnisn1s by which my procand forth through IOll4 li any GeQrecl co l c scticetl, and in Fig. 2 e (ll-a.- .znenns, but 1 t shown in the an is front elevation of the arrange plication "he grinding and polishing clevice, and hem-ii limit niysi.

for the present that the devices described or 'lerresl 1., inc 8E ("lo with sheet steel. after it make use of any which will give the at. the usual. pickling sclu sheets a line polished surface or surfaces.

From the buller, the sheets pass to the placed in the pickling tank bluing'nmchine 10, which is preferably conn snlliciently treated therein, are structetl in accnrclzmce Ni 1 my application, 96

scrubber 2, which may he of Serial Number Q'5,5S3, or my application cons't; nation, but is shown as Serial Number r 3,761.

11 l he itcedi -g in pair of rolls 8, the l have shown the n'izichine 03'': my l2 tier out pair of rolls 4, and the intermediate application. It consists of: ,a pair of hollow 5 W .s of rotary scrubbing rolls 5, composed rolls and 17, which maybe internally n i, 7 Of) jllelierzihly of Wire brushes which rotate heated to rf lily any suitable gas burner rcpiclly in contact with opposite sides of or otherwise; The roll 16 has parallel to the sheets and clean hem thoroughly. l l eit series of small rollers 18 which guide i supplied 'm the brushes during their 'the sheets 2" cm the table 19 between themby memes of the pi 5, or in any selves and the roll 16 into the pass between inner. l the rolls 16 am: 17. he sheets enter the from the scrubber? 33 he said pass from the rear of the rolls; and as sire of hollow drying rollers they issue from the same, they are stripped I internally by steam, flame, or'cthfrom the roll 1? by the strippe'rQO and pass te c a between the roll 1? ends series of rollers .ne clrlecl sheets pass from the drying 21, Which direct the sheets over the top of rollers 7 bo'the grinding and polishing apthe roll 17 upon the table 22. The sheets, eretics, indicateol graphically by the pairs as they pass around the rolls 16' and 17 are omission of the rollers 21.

subject to several lines of pressure which travel from one end of each sheet to the other. At the same time they are subject to the heat transmitted from the rolls whereby they issue upon the table 22 with a glossy dark finish, known as a blue or Russia finish. Good results may be secured by the use of the rolls 16 and 17 alone,'or by the By passing around both rolls the treatment is prolonged and each side of the sheets is in contact with one of the rolls.

The sheets pass from the table 22 between the voiling rollers 23 and out upon the table 24, from which they are removed for storage or shipment, as desired. The'oil is for the plllirpose of preserving the surface of the s eets.

Havingdescrihed my invention, I olaim The process of treating metals, which as a final step in the molecular distribution of the meta'l'subjecting it to a traveling line of pressure and simultaneously heating one surface as the line travels, and subjecting it to another traveling line of pressure and simultaneously heating the other surface as the line travels.

Signed at'Pittsburgh, Pa, this 20th day of March, A, D. '1905.- HARRY E. Witnesses:

F. N. BARBER, M. A. BUSHMAN.

a Qll consists iITPICkllIlg the same, feeding them' 

